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251
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Step-by-step needle penetration testing process
Sample preparation
Specimens are cut to the required dimensions and conditioned to the specified environmental parameters such as temperature and humidity. Thickness and surface finish are controlled for consistency.
252
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The process of tension testing
Tension testing follows a defined process to ensure accuracy and repeatability:
253
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Key material testing standards
To ensure accuracy and comparability, elongation at break and tensile strength measurements are performed according to recognised industry standards.
254
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Relevant standards for lap shear under compression
International testing standards provide consistency and repeatability for adhesive strength tests, including those involving compressive loading. The following standards are particularly relevant:
255
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Types of compressive shear tests
Test configurations vary according to the material, application, and relevant industry standard.
256
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How is double lap shear testing performed?
Specimen preparation
Specimens are prepared according to standardised dimensions.
257
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Introduction to penetration and puncture resistance testing
Penetration and puncture resistance testing are essential for evaluating how well a material can withstand force from sharp, pointed, or blunt objects.
258
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Selecting compression testing equipment
Choosing the right testing system is critical for accurate and repeatable results. Factors such as force range, sample type and testing throughput influence equipment selection.
259
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What is strip torque testing?
Definition and importance
Strip torque testing measures the torque required to continue rotating a threaded closure beyond its normal sealing point until the thread strips or the closure fails.
261
Product
Manual test stand
MDD Precision Handwheel
804-001
Manually-operated test stands are compact, portable, and can be bench-mounted for ergonomic use.
Combine with any Mecmesin digital force gauge to measure tension and compression up to 1000 N.
Force gauge sold separately.
262
Accessory
Spare set of 15 needles for Shotcrete Penetrometer
432-519
Set of 15 Penetration Needles for use with the Mecmesin Shotcrete Pentrometer.
Needles fit into the needle-holder supplied as standard with the Shotcrete Penetrometer
263
Product
Touchscreen force and torque indicator
VFTI
850-610
A powerful and versatile touchscreen display unit for use with Mecmesin's 'Smart' range of interchangeable force and torque sensors. Ideal for testing where high accuracy and flexibility are key requirements.
The VFTI , powered by Vector OS, instantly…
264
Product
Precision automated torque tester
HelixaPro
876-450
The HelixaPro is a precision torque tester controlled by VectorPro software running on your computer.
265
Product
Couplemètre motorisé
Vortex-dV
876-601
Le Vortex-dV est un couplemètre polyvalent, robuste et autonome, évalué à 10 Nm. Facile à utiliser, il convient aux contrôles de routine de qualité dans un environnement de production ou de laboratoire.
Configurez cet appareil motorisé avec un…
266
Case study
L'Institut polytechnique de Worcester (WPI) trouve le bon filon en science des matériaux
Deux enseignants entreprenants du Worcester Polytechnic Institute (WPI) dans le Massachusetts, aux États-Unis, font de l'étude de la science des matériaux une expérience pratique et engageante que certains de leurs étudiants qualifient tout simplement d…
267
Case study
Pharmaceutical tablet crush and break strength
Requirement
Many products come in tablet form, with a durability designed for both packaging and for use. Too brittle or too hard, and they may not be fit for use, or at best perform below expectation.
268
Case study
Lipstick shear force resistance
Requirement
Lipstick holds the top spot in the hierarchy of makeup with its ability to completely transform appearance without the help of any other beauty product.
269
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How these calculations are applied
These values are calculated instantly as part of the test routine. Predefined formulas and logic conditions are applied to the captured data, delivering results in real time.
Applications include:
270
Case study
Syringe pump calibrator
Requirement
Medical device manufacturers, Cardinal Health, supply a range of syringe pump infusion systems to hospitals.
271
Case study
Mesure physiologique de la force articulaire
Exigence
L'université La Trobe à Melbourne avait besoin d'un appareil pour tester la première articulation métatarso-phalangienne, communément appelée le gros orteil. Ils voulaient comparer la force des orteils de différents patients.
272
Case study
Hypodermic needle sharpness testing
Customised engineering example
Hypodermic needles are tested to determine how their design influences the ease of insertion into the skin, patient pain and skin trauma.
273
Case study
Test de pelage sur poche de colostomie
Exigence
Salts Healthcare, un fabricant et fournisseur de dispositifs médicaux de premier plan, avait besoin d’un système de faible capacité pour tester l’intégrité de ses produits hydrocolloïdes.
274
Case study
Plasterboard penetration testing for performance and durability
Requirement
Saint-Gobain (British Gypsum) are leaders in the design; production and distribution of materials for the construction; industrial and consumer markets and are Europe’s largest distributor of building materials.
275
Case study
Festive lighting masonry anchorage strength checking
Requirement
A number of local councils in the United Kingdom have adopted a new code of practice for the Installation, Operation and Removal of Seasonal Decorations.